Nut-lock.



are' Renner o; Har/ritieni), 'orAr/iijrifvininivnw vonk; ASIGNR To cnannns r. DELNO', oF murrvvinnn, NEW YORK.

Applicationid Aiigast e, 1ere. serial N. 7,111,256.`

To all vzcfo'm t 'may concern.' j j Be it known that I, ROBERTO. HairIMoND,

a citizeiiof the United States",y residingat Amityville, rin `thecou'nty of [S'uolk andV State of New York, have invented certain new `and useful Improveinentf's in Nut-llocks, of which the followingA is ya specification.

Tliis invention relates tf 1ne'ivaiid useful improvements in lock iiutsand bolts.A

The object of this invention is/.tlie provision of a device'k of this character, which will securely hold` the nut againstany undesired rotation kupon the bolt, ybutv which can be very quickly reiiidvedl whenpdesired.

Another object of this invention, is to improve and simplify dericesef. .this eheracter, rendering them comparatively simple and inexpensive to manufacture, reliable and eflicient in use, and readily operated.

l/Vith the above and other objects in view, this invention resides in the novel features of construction, formations, combinations, and arrangements of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing in which:

Figure 1 is a transverse sectional view taken through a nut andfbolt constructed in accordance with my invention. Fig. 2 is a detail perspective view of my improved plug removed from the nut. Fig. 3 is a View similar to Fig. 1, but showing a modified form of plug; and Fig. 4 is a similar view showing a still further modification. 5 is a detail sectional view taken on the line 5 5 of Fig. 4.

Referring to the accompanying drawing by similar characters of reference, the nu meral 6 designates generally my improved lock nut, which embodies a threaded bolt 7 upon which is located a nut 8. The bolt 7 is formed upon its opposite sides with longitudinal grooves 9 for a purpose to be later more fully explained.

The nut 8 can be any desired shape, and is formed in one side 'with a cylindrical opening 10 which leads from the outer side of the nut to a point adjacent the opposite side thereof. The intermediate point of this opening l0 communicates with the central portion of the usual threaded opening 11 of the nut 8. The interior of the opening 10 is threaded as shown and receives a plug 12 the outer end of which is beveled as at 13 to lie flush with the outer side of the nut, While the Seme is also .formed with key Lena of sie Fig.

sockets 14 by.` means of which the samecan berotated and moved longitudinally of the openingy 10. One side of the plug as shown.

in Figs. 1 and 2. of the drawings is cut away as at 15, to produce a pair of cylindrical space/d blocksl and 17 which are connected by an vintegral bar 18. The inner end of the block 16 is` formed with la socket19, ,while the blolclrlis provided with a centralfbore 20, which leads through the ends thereof.

. plunger A21. is disposed between thead jacent ends of the'block's 16 and 17, and eX- teiids intov theope'ning 11, being normally Vforced ,into one of the grooves of the bolt 7' bya spring 22, which is seated in the socket. 1,9. 1,- fstein 23 is Aforme-dupon` one v plunger 21 and extends through the bore 2O and projects slightly beyond the outer side of the nut 8, in such manner that when a wrench (not shown) is applied to the nut 8 the same will cause the inward movement of the stem 23', which releases the nut from the bolt 7' and permits its rotation in either direction; and upon the re- 1 moval of the wrench, the spring 22 will force the plunger 21 into one of the grooves 9 which again locks the nut against any rotation relative to the said bolt.

Upon the insertion of an instrument into thesockets 14, and the movement of the plug within the nut 8, the plunger will be moved into or out of operative relation with the bolt 7. Y

In Fig. 3 of the drawing the plug is made to engage only one side of the plunger 21 as clearly shown, and the spring 22 engages the end of the opening 10 and adjacent face of the plunger 2l, while in Figs. 4 and 5 the stem 23 is square and passes through a square opening in the plug. The end of the stem 23 is also .formed with a notch, so that upon the rotation thereof by means of a suitable instrument, the plug 12 will be moved longitudinally of the opening l0.

The operation of the device is as follows The bolt 'e' is passed through the material to be secured, and then the nut 8 is applied and as soon as the same has grasped the threads of the bolt 7 a wrench is applied to the said nut 8, the jaws of the wrench hold the stem 23 of the plunger inwardly bringing the -rounded end portion of the stem 23 flush with the inclined face of the nut 8, thus holding the plunger out of engagement with the grooves 9 of the bolt 7.

ice

removed and` by means of the coil spring 22 the plunger is forced back into its normal position at the same time seating its lower" edge in the first groove 9 of the bolt 7 that happens to feed into it. To remove the nut 8 and bolt 7 thesame operation is required, but of course the nut 8 must be turned and screwed in the opposite direction, With the Wrench applied in the same manner.

From the foregoing it should be underf stood in this connection that various minor rchanges in the details of construction can be resorted to Within the scope of the appended claim vvithoutdeparting from or sacricing anyof theadvantages of the invention.

From the' foregoing disclosures taken in connection With the accompanying drawings it Will be manifest that a nut lockrofthe type described is provided which Will fulfil all ofthe necessary requirements of such a device.` y Y Havingthus fully described this inven- CopiesY of this patent my be obtained for Letters Patent is :-r

The combination With a bolt having 'groovesthereim of a nut having a threaded erative relation With the grooves in the rbolt and retaining the said plunger in inoperatlve position, anda stem projecting from Vthev plunger` through the plug and beyond the side of the nut, whereby upon depression of said stem, the plunger Will be forced to inoperative position.

In testimony whereofl I aiiX my signature -in' presence of two Witnesses.

ROBERT O. HAlWMOND.

Witnesses: y

JNO. R. VVooDWoR'rH7 ALBERT L. KREY. y

ve cents each, by addressing the Commissioner of '.Patents. Washington, D. C.

tion, What Ijclaim and desire` to protect by Y 

